method

append_file_with_newline

rails latest stable - Class: Rails::Generators::Actions

append_file_with_newline(path, str, options = {})

private

Append string to a file with a newline if necessary

# File railties/lib/rails/generators/actions.rb, line 507
        def append_file_with_newline(path, str, options = {})
          gsub_file path, /\n?\z/, options do |match|
            match.end_with?("\n") ? "" : "\n#{str}\n"
          end
        end

append_file_with_newline

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